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                <h1 id="准备工作"><a href="#准备工作" class="headerlink" title="准备工作"></a>准备工作</h1><p>数据库创建：</p>
<pre class=" language-sql"><code class="language-sql"><span class="token keyword">CREATE</span> <span class="token keyword">DATABASE</span> <span class="token punctuation">`</span>ssmbuild<span class="token punctuation">`</span><span class="token punctuation">;</span>
 
<span class="token keyword">USE</span> <span class="token punctuation">`</span>ssmbuild<span class="token punctuation">`</span><span class="token punctuation">;</span>
 
<span class="token keyword">DROP</span> <span class="token keyword">TABLE</span> <span class="token keyword">IF</span> <span class="token keyword">EXISTS</span> <span class="token punctuation">`</span>books<span class="token punctuation">`</span><span class="token punctuation">;</span>
 
<span class="token keyword">CREATE</span> <span class="token keyword">TABLE</span> <span class="token punctuation">`</span>books<span class="token punctuation">`</span> <span class="token punctuation">(</span>
  <span class="token punctuation">`</span>bookID<span class="token punctuation">`</span> <span class="token keyword">INT</span><span class="token punctuation">(</span><span class="token number">10</span><span class="token punctuation">)</span> <span class="token operator">NOT</span> <span class="token boolean">NULL</span> <span class="token keyword">AUTO_INCREMENT</span> <span class="token keyword">COMMENT</span> <span class="token string">'书id'</span><span class="token punctuation">,</span>
  <span class="token punctuation">`</span>bookName<span class="token punctuation">`</span> <span class="token keyword">VARCHAR</span><span class="token punctuation">(</span><span class="token number">100</span><span class="token punctuation">)</span> <span class="token operator">NOT</span> <span class="token boolean">NULL</span> <span class="token keyword">COMMENT</span> <span class="token string">'书名'</span><span class="token punctuation">,</span>
  <span class="token punctuation">`</span>bookCounts<span class="token punctuation">`</span> <span class="token keyword">INT</span><span class="token punctuation">(</span><span class="token number">11</span><span class="token punctuation">)</span> <span class="token operator">NOT</span> <span class="token boolean">NULL</span> <span class="token keyword">COMMENT</span> <span class="token string">'数量'</span><span class="token punctuation">,</span>
  <span class="token punctuation">`</span>detail<span class="token punctuation">`</span> <span class="token keyword">VARCHAR</span><span class="token punctuation">(</span><span class="token number">200</span><span class="token punctuation">)</span> <span class="token operator">NOT</span> <span class="token boolean">NULL</span> <span class="token keyword">COMMENT</span> <span class="token string">'描述'</span><span class="token punctuation">,</span>
  <span class="token keyword">KEY</span> <span class="token punctuation">`</span>bookID<span class="token punctuation">`</span> <span class="token punctuation">(</span><span class="token punctuation">`</span>bookID<span class="token punctuation">`</span><span class="token punctuation">)</span>
<span class="token punctuation">)</span> <span class="token keyword">ENGINE</span><span class="token operator">=</span><span class="token keyword">INNODB</span> <span class="token keyword">DEFAULT</span> <span class="token keyword">CHARSET</span><span class="token operator">=</span>utf8
 
<span class="token keyword">INSERT</span>  <span class="token keyword">INTO</span> <span class="token punctuation">`</span>books<span class="token punctuation">`</span><span class="token punctuation">(</span><span class="token punctuation">`</span>bookID<span class="token punctuation">`</span><span class="token punctuation">,</span><span class="token punctuation">`</span>bookName<span class="token punctuation">`</span><span class="token punctuation">,</span><span class="token punctuation">`</span>bookCounts<span class="token punctuation">`</span><span class="token punctuation">,</span><span class="token punctuation">`</span>detail<span class="token punctuation">`</span><span class="token punctuation">)</span><span class="token keyword">VALUES</span> 
<span class="token punctuation">(</span><span class="token number">1</span><span class="token punctuation">,</span><span class="token string">'Java'</span><span class="token punctuation">,</span><span class="token number">1</span><span class="token punctuation">,</span><span class="token string">'从入门到放弃'</span><span class="token punctuation">)</span><span class="token punctuation">,</span>
<span class="token punctuation">(</span><span class="token number">2</span><span class="token punctuation">,</span><span class="token string">'MySQL'</span><span class="token punctuation">,</span><span class="token number">10</span><span class="token punctuation">,</span><span class="token string">'从删库到跑路'</span><span class="token punctuation">)</span><span class="token punctuation">,</span>
<span class="token punctuation">(</span><span class="token number">3</span><span class="token punctuation">,</span><span class="token string">'Linux'</span><span class="token punctuation">,</span><span class="token number">5</span><span class="token punctuation">,</span><span class="token string">'从进门到进牢'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
</code></pre>
<p>maven依赖</p>
<pre class=" language-xml"><code class="language-xml"><span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>dependencies</span><span class="token punctuation">></span></span>
    <span class="token comment" spellcheck="true">&lt;!--Junit--></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>dependency</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>groupId</span><span class="token punctuation">></span></span>junit<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>groupId</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>artifactId</span><span class="token punctuation">></span></span>junit<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>artifactId</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>version</span><span class="token punctuation">></span></span>4.12<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>version</span><span class="token punctuation">></span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>dependency</span><span class="token punctuation">></span></span>
    <span class="token comment" spellcheck="true">&lt;!--数据库驱动--></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>dependency</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>groupId</span><span class="token punctuation">></span></span>mysql<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>groupId</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>artifactId</span><span class="token punctuation">></span></span>mysql-connector-java<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>artifactId</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>version</span><span class="token punctuation">></span></span>5.1.47<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>version</span><span class="token punctuation">></span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>dependency</span><span class="token punctuation">></span></span>
    <span class="token comment" spellcheck="true">&lt;!-- 数据库连接池 --></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>dependency</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>groupId</span><span class="token punctuation">></span></span>com.mchange<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>groupId</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>artifactId</span><span class="token punctuation">></span></span>c3p0<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>artifactId</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>version</span><span class="token punctuation">></span></span>0.9.5.2<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>version</span><span class="token punctuation">></span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>dependency</span><span class="token punctuation">></span></span>
 
    <span class="token comment" spellcheck="true">&lt;!--Servlet - JSP --></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>dependency</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>groupId</span><span class="token punctuation">></span></span>javax.servlet<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>groupId</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>artifactId</span><span class="token punctuation">></span></span>servlet-api<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>artifactId</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>version</span><span class="token punctuation">></span></span>2.5<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>version</span><span class="token punctuation">></span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>dependency</span><span class="token punctuation">></span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>dependency</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>groupId</span><span class="token punctuation">></span></span>javax.servlet.jsp<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>groupId</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>artifactId</span><span class="token punctuation">></span></span>jsp-api<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>artifactId</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>version</span><span class="token punctuation">></span></span>2.2<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>version</span><span class="token punctuation">></span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>dependency</span><span class="token punctuation">></span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>dependency</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>groupId</span><span class="token punctuation">></span></span>javax.servlet<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>groupId</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>artifactId</span><span class="token punctuation">></span></span>jstl<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>artifactId</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>version</span><span class="token punctuation">></span></span>1.2<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>version</span><span class="token punctuation">></span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>dependency</span><span class="token punctuation">></span></span>
 
    <span class="token comment" spellcheck="true">&lt;!--Mybatis--></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>dependency</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>groupId</span><span class="token punctuation">></span></span>org.mybatis<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>groupId</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>artifactId</span><span class="token punctuation">></span></span>mybatis<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>artifactId</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>version</span><span class="token punctuation">></span></span>3.5.2<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>version</span><span class="token punctuation">></span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>dependency</span><span class="token punctuation">></span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>dependency</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>groupId</span><span class="token punctuation">></span></span>org.mybatis<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>groupId</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>artifactId</span><span class="token punctuation">></span></span>mybatis-spring<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>artifactId</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>version</span><span class="token punctuation">></span></span>2.0.2<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>version</span><span class="token punctuation">></span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>dependency</span><span class="token punctuation">></span></span>
 
    <span class="token comment" spellcheck="true">&lt;!--Spring--></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>dependency</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>groupId</span><span class="token punctuation">></span></span>org.springframework<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>groupId</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>artifactId</span><span class="token punctuation">></span></span>spring-webmvc<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>artifactId</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>version</span><span class="token punctuation">></span></span>5.1.9.RELEASE<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>version</span><span class="token punctuation">></span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>dependency</span><span class="token punctuation">></span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>dependency</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>groupId</span><span class="token punctuation">></span></span>org.springframework<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>groupId</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>artifactId</span><span class="token punctuation">></span></span>spring-jdbc<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>artifactId</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>version</span><span class="token punctuation">></span></span>5.1.9.RELEASE<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>version</span><span class="token punctuation">></span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>dependency</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>dependencies</span><span class="token punctuation">></span></span>
</code></pre>
<p>maven资源过滤</p>
<pre class=" language-xml"><code class="language-xml"><span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>build</span><span class="token punctuation">></span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>resources</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>resource</span><span class="token punctuation">></span></span>
            <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>directory</span><span class="token punctuation">></span></span>src/main/java<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>directory</span><span class="token punctuation">></span></span>
            <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>includes</span><span class="token punctuation">></span></span>
                <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>include</span><span class="token punctuation">></span></span>**/*.properties<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>include</span><span class="token punctuation">></span></span>
                <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>include</span><span class="token punctuation">></span></span>**/*.xml<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>include</span><span class="token punctuation">></span></span>
            <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>includes</span><span class="token punctuation">></span></span>
            <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>filtering</span><span class="token punctuation">></span></span>false<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>filtering</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>resource</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>resource</span><span class="token punctuation">></span></span>
            <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>directory</span><span class="token punctuation">></span></span>src/main/resources<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>directory</span><span class="token punctuation">></span></span>
            <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>includes</span><span class="token punctuation">></span></span>
                <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>include</span><span class="token punctuation">></span></span>**/*.properties<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>include</span><span class="token punctuation">></span></span>
                <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>include</span><span class="token punctuation">></span></span>**/*.xml<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>include</span><span class="token punctuation">></span></span>
            <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>includes</span><span class="token punctuation">></span></span>
            <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>filtering</span><span class="token punctuation">></span></span>false<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>filtering</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>resource</span><span class="token punctuation">></span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>resources</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>build</span><span class="token punctuation">></span></span>
</code></pre>
<h1 id="配置基本框架-包"><a href="#配置基本框架-包" class="headerlink" title="配置基本框架 包"></a>配置基本框架 包</h1><p>在com.dai 下面分别建立controller、mapper、pojo、service</p>
<p>controller：前后端控制实现。</p>
<p>mapper：用于mybatis和数据库操作的实现</p>
<p>pojo：数据库对应的实现类（字段名和数据库一致）</p>
<p>service：事务的调用实现</p>
<h1 id="连接数据库"><a href="#连接数据库" class="headerlink" title="连接数据库"></a>连接数据库</h1><p>先配置一个数据库的database.properties文件</p>
<pre class=" language-properties"><code class="language-properties"><span class="token attr-name">jdbc.driver</span><span class="token punctuation">=</span><span class="token attr-value">com.mysql.jdbc.Driver</span>
<span class="token attr-name">jdbc.url</span><span class="token punctuation">=</span><span class="token attr-value">jdbc:mysql://localhost:3306/ssmbuild?useSSL=true&amp;useUnicode=true&amp;characterEncoding=utf8</span>
<span class="token attr-name">jdbc.username</span><span class="token punctuation">=</span><span class="token attr-value">root</span>
<span class="token attr-name">jdbc.password</span><span class="token punctuation">=</span><span class="token attr-value">123456</span>
</code></pre>
<p>再配置mybatis-config.xml来控制数据库</p>
<pre class=" language-java"><code class="language-java"><span class="token operator">&lt;</span><span class="token operator">?</span>xml version<span class="token operator">=</span><span class="token string">"1.0"</span> encoding<span class="token operator">=</span><span class="token string">"UTF-8"</span> <span class="token operator">?</span><span class="token operator">></span>
<span class="token operator">&lt;</span><span class="token operator">!</span>DOCTYPE configuration
        PUBLIC <span class="token string">"-//mybatis.org//DTD Config 3.0//EN"</span>
        <span class="token string">"http://mybatis.org/dtd/mybatis-3-config.dtd"</span><span class="token operator">></span>
<span class="token operator">&lt;</span>configuration<span class="token operator">></span>


    <span class="token operator">&lt;</span>settings<span class="token operator">></span>
        <span class="token operator">&lt;</span>setting name<span class="token operator">=</span><span class="token string">"logImpl"</span> value<span class="token operator">=</span><span class="token string">"STDOUT_LOGGING"</span><span class="token operator">/</span><span class="token operator">></span>
    <span class="token operator">&lt;</span><span class="token operator">/</span>settings<span class="token operator">></span>

<span class="token operator">&lt;</span><span class="token operator">!</span><span class="token operator">--</span>    配置数据源，交个spring做<span class="token operator">--</span><span class="token operator">></span>
    <span class="token operator">&lt;</span>typeAliases<span class="token operator">></span>
        <span class="token operator">&lt;</span><span class="token keyword">package</span> name<span class="token operator">=</span><span class="token string">"com.dai.pojo"</span><span class="token operator">/</span><span class="token operator">></span>
    <span class="token operator">&lt;</span><span class="token operator">/</span>typeAliases<span class="token operator">></span>

    <span class="token operator">&lt;</span>mappers<span class="token operator">></span>
        <span class="token operator">&lt;</span>mapper <span class="token keyword">class</span><span class="token operator">=</span><span class="token string">"com.dai.mapper.BookMapper"</span><span class="token operator">/</span><span class="token operator">></span>
    <span class="token operator">&lt;</span><span class="token operator">/</span>mappers<span class="token operator">></span>



<span class="token operator">&lt;</span><span class="token operator">/</span>configuration<span class="token operator">></span>
</code></pre>
<p>在利用spring容器创建一个spring到文件来获取mybatis-config.xml并完成数据库连接</p>
<pre class=" language-xml"><code class="language-xml"><span class="token prolog">&lt;?xml version="1.0" encoding="UTF-8"?></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>beans</span> <span class="token attr-name">xmlns</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>http://www.springframework.org/schema/beans<span class="token punctuation">"</span></span>
       <span class="token attr-name"><span class="token namespace">xmlns:</span>xsi</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>http://www.w3.org/2001/XMLSchema-instance<span class="token punctuation">"</span></span>
       <span class="token attr-name"><span class="token namespace">xmlns:</span>context</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>http://www.springframework.org/schema/context<span class="token punctuation">"</span></span>
       <span class="token attr-name"><span class="token namespace">xsi:</span>schemaLocation</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>

<span class="token comment" spellcheck="true">&lt;!--    管理数据库配置文件--></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span><span class="token namespace">context:</span>property-placeholder</span> <span class="token attr-name">location</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>classpath:database.properties<span class="token punctuation">"</span></span><span class="token punctuation">/></span></span>
<span class="token comment" spellcheck="true">&lt;!--    连接池--></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>bean</span> <span class="token attr-name">id</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>dataSource<span class="token punctuation">"</span></span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>com.mchange.v2.c3p0.ComboPooledDataSource<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>property</span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>driverClass<span class="token punctuation">"</span></span> <span class="token attr-name">value</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>$&amp;#123;jdbc.driver&amp;#125;<span class="token punctuation">"</span></span><span class="token punctuation">/></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>property</span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>jdbcUrl<span class="token punctuation">"</span></span> <span class="token attr-name">value</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>$&amp;#123;jdbc.url&amp;#125;<span class="token punctuation">"</span></span><span class="token punctuation">/></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>property</span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>user<span class="token punctuation">"</span></span> <span class="token attr-name">value</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>$&amp;#123;jdbc.username&amp;#125;<span class="token punctuation">"</span></span><span class="token punctuation">/></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>property</span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>password<span class="token punctuation">"</span></span> <span class="token attr-name">value</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>$&amp;#123;jdbc.password&amp;#125;<span class="token punctuation">"</span></span><span class="token punctuation">/></span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>bean</span><span class="token punctuation">></span></span>

<span class="token comment" spellcheck="true">&lt;!--    sqlSessionFactory--></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>bean</span> <span class="token attr-name">id</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>sqlSessionFactory<span class="token punctuation">"</span></span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>org.mybatis.spring.SqlSessionFactoryBean<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>property</span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>dataSource<span class="token punctuation">"</span></span> <span class="token attr-name">ref</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>dataSource<span class="token punctuation">"</span></span><span class="token punctuation">/></span></span>
<span class="token comment" spellcheck="true">&lt;!--        绑定mybatis配置文件--></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>property</span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>configLocation<span class="token punctuation">"</span></span> <span class="token attr-name">value</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>classpath:mybatis-config.xml<span class="token punctuation">"</span></span><span class="token punctuation">/></span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>bean</span><span class="token punctuation">></span></span>

<span class="token comment" spellcheck="true">&lt;!--    配置dao接口扫描包,动态的实现dao接口可以注入到spring容器中！--></span>

    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>bean</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>org.mybatis.spring.mapper.MapperScannerConfigurer<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
<span class="token comment" spellcheck="true">&lt;!--        注入sqlSessionFactory--></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>property</span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>sqlSessionFactoryBeanName<span class="token punctuation">"</span></span> <span class="token attr-name">value</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>sqlSessionFactory<span class="token punctuation">"</span></span><span class="token punctuation">/></span></span>
<span class="token comment" spellcheck="true">&lt;!--扫描dao的包--></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>property</span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>basePackage<span class="token punctuation">"</span></span> <span class="token attr-name">value</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>com.dai.mapper<span class="token punctuation">"</span></span><span class="token punctuation">/></span></span>

    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>bean</span><span class="token punctuation">></span></span>

<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>beans</span><span class="token punctuation">></span></span>
</code></pre>
<h1 id="编写实体类"><a href="#编写实体类" class="headerlink" title="编写实体类"></a>编写实体类</h1><p>在pojo包下创建和数据库字段一一对应的实体类</p>
<pre class=" language-java"><code class="language-java"><span class="token keyword">package</span> com<span class="token punctuation">.</span>dai<span class="token punctuation">.</span>pojo<span class="token punctuation">;</span>

<span class="token keyword">import</span> lombok<span class="token punctuation">.</span>AllArgsConstructor<span class="token punctuation">;</span>
<span class="token keyword">import</span> lombok<span class="token punctuation">.</span>Data<span class="token punctuation">;</span>
<span class="token keyword">import</span> lombok<span class="token punctuation">.</span>NoArgsConstructor<span class="token punctuation">;</span>

<span class="token annotation punctuation">@Data</span>
<span class="token annotation punctuation">@AllArgsConstructor</span>
<span class="token annotation punctuation">@NoArgsConstructor</span>
<span class="token keyword">public</span> <span class="token keyword">class</span> <span class="token class-name">Books</span> <span class="token operator">&amp;</span>#<span class="token number">123</span><span class="token punctuation">;</span>

    <span class="token keyword">private</span> <span class="token keyword">int</span> bookID<span class="token punctuation">;</span>
    <span class="token keyword">private</span> String bookName<span class="token punctuation">;</span>
    <span class="token keyword">private</span> <span class="token keyword">int</span> bookCounts<span class="token punctuation">;</span>
    <span class="token keyword">private</span>  String detail<span class="token punctuation">;</span>

<span class="token operator">&amp;</span>#<span class="token number">125</span><span class="token punctuation">;</span>
<span class="token comment" spellcheck="true">//使用了注解的无参和有参和lombok插件来自动配置相关参数</span>
</code></pre>
<h1 id="配置spring层面"><a href="#配置spring层面" class="headerlink" title="配置spring层面"></a>配置spring层面</h1><p>配置applicationContext.xml</p>
<pre class=" language-xml"><code class="language-xml"><span class="token prolog">&lt;?xml version="1.0" encoding="UTF-8"?></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>beans</span> <span class="token attr-name">xmlns</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>http://www.springframework.org/schema/beans<span class="token punctuation">"</span></span>
       <span class="token attr-name"><span class="token namespace">xmlns:</span>xsi</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>http://www.w3.org/2001/XMLSchema-instance<span class="token punctuation">"</span></span>
       <span class="token attr-name"><span class="token namespace">xsi:</span>schemaLocation</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>

    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>import</span> <span class="token attr-name">resource</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>spring-dao.xml<span class="token punctuation">"</span></span><span class="token punctuation">/></span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>import</span> <span class="token attr-name">resource</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>spring-service.xml<span class="token punctuation">"</span></span><span class="token punctuation">/></span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>import</span> <span class="token attr-name">resource</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>spring-mvc.xml<span class="token punctuation">"</span></span><span class="token punctuation">/></span></span>

<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>beans</span><span class="token punctuation">></span></span>
</code></pre>
<p>创建mapper包下mapper接口</p>
<pre class=" language-java"><code class="language-java"><span class="token keyword">package</span> com<span class="token punctuation">.</span>dai<span class="token punctuation">.</span>mapper<span class="token punctuation">;</span>

<span class="token keyword">import</span> com<span class="token punctuation">.</span>dai<span class="token punctuation">.</span>pojo<span class="token punctuation">.</span>Books<span class="token punctuation">;</span>
<span class="token keyword">import</span> org<span class="token punctuation">.</span>apache<span class="token punctuation">.</span>ibatis<span class="token punctuation">.</span>annotations<span class="token punctuation">.</span>Param<span class="token punctuation">;</span>

<span class="token keyword">import</span> java<span class="token punctuation">.</span>util<span class="token punctuation">.</span>List<span class="token punctuation">;</span>

<span class="token keyword">public</span> <span class="token keyword">interface</span> <span class="token class-name">BookMapper</span> <span class="token operator">&amp;</span>#<span class="token number">123</span><span class="token punctuation">;</span>

    <span class="token keyword">int</span> <span class="token function">addBook</span><span class="token punctuation">(</span>Books books<span class="token punctuation">)</span><span class="token punctuation">;</span>

    <span class="token keyword">int</span> <span class="token function">deleteBook</span><span class="token punctuation">(</span><span class="token annotation punctuation">@Param</span><span class="token punctuation">(</span><span class="token string">"bookId"</span><span class="token punctuation">)</span> <span class="token keyword">int</span> id<span class="token punctuation">)</span><span class="token punctuation">;</span>

    <span class="token keyword">int</span> <span class="token function">updateBook</span><span class="token punctuation">(</span>Books books<span class="token punctuation">)</span><span class="token punctuation">;</span>

    Books <span class="token function">queryBookById</span><span class="token punctuation">(</span><span class="token annotation punctuation">@Param</span><span class="token punctuation">(</span><span class="token string">"bookId"</span><span class="token punctuation">)</span> <span class="token keyword">int</span> id<span class="token punctuation">)</span><span class="token punctuation">;</span>

    List<span class="token operator">&lt;</span>Books<span class="token operator">></span> <span class="token function">queryAllBooks</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>

    Books <span class="token function">queryBookName</span><span class="token punctuation">(</span><span class="token annotation punctuation">@Param</span><span class="token punctuation">(</span><span class="token string">"bookName"</span><span class="token punctuation">)</span> String name<span class="token punctuation">)</span><span class="token punctuation">;</span>

<span class="token operator">&amp;</span>#<span class="token number">125</span><span class="token punctuation">;</span>
</code></pre>
<p>xml配置文件实现mapper接口完成IOC</p>
<pre class=" language-xml"><code class="language-xml"><span class="token prolog">&lt;?xml version="1.0" encoding="UTF-8" ?></span>
<span class="token doctype">&lt;!DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd"></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>mapper</span> <span class="token attr-name">namespace</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>com.dai.mapper.BookMapper<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
    
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>insert</span> <span class="token attr-name">id</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>addBook<span class="token punctuation">"</span></span> <span class="token attr-name">parameterType</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>Books<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
        insert into ssmbuild.books(bookName, bookCounts, detail)
        values (#<span class="token entity" title="&#123;">&amp;#123;</span>bookName<span class="token entity" title="&#125;">&amp;#125;</span>,#<span class="token entity" title="&#123;">&amp;#123;</span>bookCounts<span class="token entity" title="&#125;">&amp;#125;</span>,#<span class="token entity" title="&#123;">&amp;#123;</span>detail<span class="token entity" title="&#125;">&amp;#125;</span>);
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>insert</span><span class="token punctuation">></span></span>

    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>delete</span> <span class="token attr-name">id</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>deleteBook<span class="token punctuation">"</span></span> <span class="token attr-name">parameterType</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>int<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
        delete from ssmbuild.books
        where bookID=#<span class="token entity" title="&#123;">&amp;#123;</span>bookId<span class="token entity" title="&#125;">&amp;#125;</span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>delete</span><span class="token punctuation">></span></span>

    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>update</span> <span class="token attr-name">id</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>updateBook<span class="token punctuation">"</span></span> <span class="token attr-name">parameterType</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>books<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
        update ssmbuild.books set bookName=#<span class="token entity" title="&#123;">&amp;#123;</span>bookName<span class="token entity" title="&#125;">&amp;#125;</span>,bookCounts=#<span class="token entity" title="&#123;">&amp;#123;</span>bookCounts<span class="token entity" title="&#125;">&amp;#125;</span>,detail=#<span class="token entity" title="&#123;">&amp;#123;</span>detail<span class="token entity" title="&#125;">&amp;#125;</span>
        where bookID=#<span class="token entity" title="&#123;">&amp;#123;</span>bookID<span class="token entity" title="&#125;">&amp;#125;</span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>update</span><span class="token punctuation">></span></span>

    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>select</span> <span class="token attr-name">id</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>queryBookById<span class="token punctuation">"</span></span> <span class="token attr-name">resultType</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>Books<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
        select  * from ssmbuild.books
        where bookID=#<span class="token entity" title="&#123;">&amp;#123;</span>bookId<span class="token entity" title="&#125;">&amp;#125;</span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>select</span><span class="token punctuation">></span></span>

    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>select</span> <span class="token attr-name">id</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>queryAllBooks<span class="token punctuation">"</span></span> <span class="token attr-name">resultType</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>Books<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
        select  * from ssmbuild.books
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>select</span><span class="token punctuation">></span></span>

    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>select</span> <span class="token attr-name">id</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>queryBookName<span class="token punctuation">"</span></span> <span class="token attr-name">resultType</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>Books<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
        select * from ssmbuild.books
        where  bookName=#<span class="token entity" title="&#123;">&amp;#123;</span>bookName<span class="token entity" title="&#125;">&amp;#125;</span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>select</span><span class="token punctuation">></span></span>

<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>mapper</span><span class="token punctuation">></span></span>
</code></pre>
<p>配置spring-dao层来绑定mybatis文件 配置sqlSessionFactory </p>
<p>将mapper接口注入到spring容器中</p>
<pre class=" language-xml"><code class="language-xml"><span class="token prolog">&lt;?xml version="1.0" encoding="UTF-8"?></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>beans</span> <span class="token attr-name">xmlns</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>http://www.springframework.org/schema/beans<span class="token punctuation">"</span></span>
       <span class="token attr-name"><span class="token namespace">xmlns:</span>xsi</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>http://www.w3.org/2001/XMLSchema-instance<span class="token punctuation">"</span></span>
       <span class="token attr-name"><span class="token namespace">xmlns:</span>context</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>http://www.springframework.org/schema/context<span class="token punctuation">"</span></span>
       <span class="token attr-name"><span class="token namespace">xsi:</span>schemaLocation</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>

<span class="token comment" spellcheck="true">&lt;!--    管理数据库配置文件--></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span><span class="token namespace">context:</span>property-placeholder</span> <span class="token attr-name">location</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>classpath:database.properties<span class="token punctuation">"</span></span><span class="token punctuation">/></span></span>
<span class="token comment" spellcheck="true">&lt;!--    连接池--></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>bean</span> <span class="token attr-name">id</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>dataSource<span class="token punctuation">"</span></span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>com.mchange.v2.c3p0.ComboPooledDataSource<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>property</span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>driverClass<span class="token punctuation">"</span></span> <span class="token attr-name">value</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>$&amp;#123;jdbc.driver&amp;#125;<span class="token punctuation">"</span></span><span class="token punctuation">/></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>property</span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>jdbcUrl<span class="token punctuation">"</span></span> <span class="token attr-name">value</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>$&amp;#123;jdbc.url&amp;#125;<span class="token punctuation">"</span></span><span class="token punctuation">/></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>property</span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>user<span class="token punctuation">"</span></span> <span class="token attr-name">value</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>$&amp;#123;jdbc.username&amp;#125;<span class="token punctuation">"</span></span><span class="token punctuation">/></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>property</span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>password<span class="token punctuation">"</span></span> <span class="token attr-name">value</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>$&amp;#123;jdbc.password&amp;#125;<span class="token punctuation">"</span></span><span class="token punctuation">/></span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>bean</span><span class="token punctuation">></span></span>

<span class="token comment" spellcheck="true">&lt;!--    sqlSessionFactory--></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>bean</span> <span class="token attr-name">id</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>sqlSessionFactory<span class="token punctuation">"</span></span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>org.mybatis.spring.SqlSessionFactoryBean<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>property</span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>dataSource<span class="token punctuation">"</span></span> <span class="token attr-name">ref</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>dataSource<span class="token punctuation">"</span></span><span class="token punctuation">/></span></span>
<span class="token comment" spellcheck="true">&lt;!--        绑定mybatis配置文件--></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>property</span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>configLocation<span class="token punctuation">"</span></span> <span class="token attr-name">value</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>classpath:mybatis-config.xml<span class="token punctuation">"</span></span><span class="token punctuation">/></span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>bean</span><span class="token punctuation">></span></span>

<span class="token comment" spellcheck="true">&lt;!--    配置dao接口扫描包,动态的实现dao接口可以注入到spring容器中！--></span>

    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>bean</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>org.mybatis.spring.mapper.MapperScannerConfigurer<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
<span class="token comment" spellcheck="true">&lt;!--        注入sqlSessionFactory--></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>property</span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>sqlSessionFactoryBeanName<span class="token punctuation">"</span></span> <span class="token attr-name">value</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>sqlSessionFactory<span class="token punctuation">"</span></span><span class="token punctuation">/></span></span>
<span class="token comment" spellcheck="true">&lt;!--扫描dao的包--></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>property</span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>basePackage<span class="token punctuation">"</span></span> <span class="token attr-name">value</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>com.dai.mapper<span class="token punctuation">"</span></span><span class="token punctuation">/></span></span>

    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>bean</span><span class="token punctuation">></span></span>

<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>beans</span><span class="token punctuation">></span></span>
</code></pre>
<h1 id="配置service层"><a href="#配置service层" class="headerlink" title="配置service层"></a>配置service层</h1><p>在service包下创建接口并用实现接口</p>
<pre class=" language-java"><code class="language-java"><span class="token keyword">package</span> com<span class="token punctuation">.</span>dai<span class="token punctuation">.</span>service<span class="token punctuation">;</span>

<span class="token keyword">import</span> com<span class="token punctuation">.</span>dai<span class="token punctuation">.</span>pojo<span class="token punctuation">.</span>Books<span class="token punctuation">;</span>
<span class="token keyword">import</span> org<span class="token punctuation">.</span>apache<span class="token punctuation">.</span>ibatis<span class="token punctuation">.</span>annotations<span class="token punctuation">.</span>Param<span class="token punctuation">;</span>

<span class="token keyword">import</span> java<span class="token punctuation">.</span>util<span class="token punctuation">.</span>List<span class="token punctuation">;</span>

<span class="token keyword">public</span> <span class="token keyword">interface</span> <span class="token class-name">BookService</span> <span class="token operator">&amp;</span>#<span class="token number">123</span><span class="token punctuation">;</span>
    <span class="token keyword">int</span> <span class="token function">addBook</span><span class="token punctuation">(</span>Books books<span class="token punctuation">)</span><span class="token punctuation">;</span>

    <span class="token keyword">int</span> <span class="token function">deleteBook</span><span class="token punctuation">(</span><span class="token keyword">int</span> id<span class="token punctuation">)</span><span class="token punctuation">;</span>

    <span class="token keyword">int</span> <span class="token function">updateBook</span><span class="token punctuation">(</span>Books books<span class="token punctuation">)</span><span class="token punctuation">;</span>

    Books <span class="token function">queryBookById</span><span class="token punctuation">(</span><span class="token keyword">int</span> id<span class="token punctuation">)</span><span class="token punctuation">;</span>

    List<span class="token operator">&lt;</span>Books<span class="token operator">></span> <span class="token function">queryAllBooks</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>

    Books <span class="token function">queryBookName</span><span class="token punctuation">(</span>String name<span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token operator">&amp;</span>#<span class="token number">125</span><span class="token punctuation">;</span>
</code></pre>
<pre class=" language-java"><code class="language-java"><span class="token keyword">package</span> com<span class="token punctuation">.</span>dai<span class="token punctuation">.</span>service<span class="token punctuation">;</span>

<span class="token keyword">import</span> com<span class="token punctuation">.</span>dai<span class="token punctuation">.</span>mapper<span class="token punctuation">.</span>BookMapper<span class="token punctuation">;</span>
<span class="token keyword">import</span> com<span class="token punctuation">.</span>dai<span class="token punctuation">.</span>pojo<span class="token punctuation">.</span>Books<span class="token punctuation">;</span>
<span class="token keyword">import</span> lombok<span class="token punctuation">.</span>Lombok<span class="token punctuation">;</span>
<span class="token keyword">import</span> org<span class="token punctuation">.</span>apache<span class="token punctuation">.</span>ibatis<span class="token punctuation">.</span>annotations<span class="token punctuation">.</span>Param<span class="token punctuation">;</span>

<span class="token keyword">import</span> java<span class="token punctuation">.</span>util<span class="token punctuation">.</span>List<span class="token punctuation">;</span>

<span class="token keyword">public</span> <span class="token keyword">class</span> <span class="token class-name">BookServiceImpl</span> <span class="token keyword">implements</span> <span class="token class-name">BookService</span><span class="token operator">&amp;</span>#<span class="token number">123</span><span class="token punctuation">;</span>

    <span class="token comment" spellcheck="true">//Service调用mapper层，组合</span>
    <span class="token keyword">private</span> BookMapper bookMapper<span class="token punctuation">;</span>

    <span class="token keyword">public</span> <span class="token keyword">void</span> <span class="token function">setBookMapper</span><span class="token punctuation">(</span>BookMapper bookMapper<span class="token punctuation">)</span><span class="token operator">&amp;</span>#<span class="token number">123</span><span class="token punctuation">;</span>
        <span class="token keyword">this</span><span class="token punctuation">.</span>bookMapper<span class="token operator">=</span>bookMapper<span class="token punctuation">;</span>
    <span class="token operator">&amp;</span>#<span class="token number">125</span><span class="token punctuation">;</span>


    <span class="token annotation punctuation">@Override</span>
    <span class="token keyword">public</span> <span class="token keyword">int</span> <span class="token function">addBook</span><span class="token punctuation">(</span>Books books<span class="token punctuation">)</span> <span class="token operator">&amp;</span>#<span class="token number">123</span><span class="token punctuation">;</span>
        <span class="token keyword">return</span> bookMapper<span class="token punctuation">.</span><span class="token function">addBook</span><span class="token punctuation">(</span>books<span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token operator">&amp;</span>#<span class="token number">125</span><span class="token punctuation">;</span>

    <span class="token annotation punctuation">@Override</span>
    <span class="token keyword">public</span> <span class="token keyword">int</span> <span class="token function">deleteBook</span><span class="token punctuation">(</span><span class="token keyword">int</span> id<span class="token punctuation">)</span> <span class="token operator">&amp;</span>#<span class="token number">123</span><span class="token punctuation">;</span>
        <span class="token keyword">return</span> bookMapper<span class="token punctuation">.</span><span class="token function">deleteBook</span><span class="token punctuation">(</span>id<span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token operator">&amp;</span>#<span class="token number">125</span><span class="token punctuation">;</span>

    <span class="token annotation punctuation">@Override</span>
    <span class="token keyword">public</span> <span class="token keyword">int</span> <span class="token function">updateBook</span><span class="token punctuation">(</span>Books books<span class="token punctuation">)</span> <span class="token operator">&amp;</span>#<span class="token number">123</span><span class="token punctuation">;</span>
        <span class="token keyword">return</span> bookMapper<span class="token punctuation">.</span><span class="token function">updateBook</span><span class="token punctuation">(</span>books<span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token operator">&amp;</span>#<span class="token number">125</span><span class="token punctuation">;</span>

    <span class="token annotation punctuation">@Override</span>
    <span class="token keyword">public</span> Books <span class="token function">queryBookById</span><span class="token punctuation">(</span><span class="token keyword">int</span> id<span class="token punctuation">)</span> <span class="token operator">&amp;</span>#<span class="token number">123</span><span class="token punctuation">;</span>
        <span class="token keyword">return</span> bookMapper<span class="token punctuation">.</span><span class="token function">queryBookById</span><span class="token punctuation">(</span>id<span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token operator">&amp;</span>#<span class="token number">125</span><span class="token punctuation">;</span>

    <span class="token annotation punctuation">@Override</span>
    <span class="token keyword">public</span> List<span class="token operator">&lt;</span>Books<span class="token operator">></span> <span class="token function">queryAllBooks</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">&amp;</span>#<span class="token number">123</span><span class="token punctuation">;</span>
        <span class="token keyword">return</span> bookMapper<span class="token punctuation">.</span><span class="token function">queryAllBooks</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token operator">&amp;</span>#<span class="token number">125</span><span class="token punctuation">;</span>

    <span class="token annotation punctuation">@Override</span>
    <span class="token keyword">public</span> Books <span class="token function">queryBookName</span><span class="token punctuation">(</span>String name<span class="token punctuation">)</span> <span class="token operator">&amp;</span>#<span class="token number">123</span><span class="token punctuation">;</span>
        <span class="token keyword">return</span> bookMapper<span class="token punctuation">.</span><span class="token function">queryBookName</span><span class="token punctuation">(</span>name<span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token operator">&amp;</span>#<span class="token number">125</span><span class="token punctuation">;</span>
<span class="token operator">&amp;</span>#<span class="token number">125</span><span class="token punctuation">;</span>
</code></pre>
<p>最后将service层面注册到spring容器中</p>
<pre class=" language-xml"><code class="language-xml"><span class="token prolog">&lt;?xml version="1.0" encoding="UTF-8"?></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>beans</span> <span class="token attr-name">xmlns</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>http://www.springframework.org/schema/beans<span class="token punctuation">"</span></span>
       <span class="token attr-name"><span class="token namespace">xmlns:</span>xsi</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>http://www.w3.org/2001/XMLSchema-instance<span class="token punctuation">"</span></span>
       <span class="token attr-name"><span class="token namespace">xmlns:</span>context</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>http://www.springframework.org/schema/context<span class="token punctuation">"</span></span>
       <span class="token attr-name"><span class="token namespace">xmlns:</span>aop</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>http://www.springframework.org/schema/aop<span class="token punctuation">"</span></span>
       <span class="token attr-name"><span class="token namespace">xsi:</span>schemaLocation</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/aop https://www.springframework.org/schema/aop/spring-aop.xsd<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>

<span class="token comment" spellcheck="true">&lt;!--    扫描包--></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span><span class="token namespace">context:</span>component-scan</span> <span class="token attr-name">base-package</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>com.dai.service<span class="token punctuation">"</span></span><span class="token punctuation">/></span></span>

<span class="token comment" spellcheck="true">&lt;!--    将所有业务类注入到spring可以通过配置或者注解实现--></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>bean</span> <span class="token attr-name">id</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>BookServiceImpl<span class="token punctuation">"</span></span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>com.dai.service.BookServiceImpl<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>property</span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>bookMapper<span class="token punctuation">"</span></span> <span class="token attr-name">ref</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>bookMapper<span class="token punctuation">"</span></span><span class="token punctuation">/></span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>bean</span><span class="token punctuation">></span></span>

<span class="token comment" spellcheck="true">&lt;!--    声明事务配置--></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>bean</span> <span class="token attr-name">id</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>TransactionManager<span class="token punctuation">"</span></span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>org.springframework.jdbc.datasource.DataSourceTransactionManager<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>property</span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>dataSource<span class="token punctuation">"</span></span> <span class="token attr-name">ref</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>dataSource<span class="token punctuation">"</span></span><span class="token punctuation">/></span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>bean</span><span class="token punctuation">></span></span>

<span class="token comment" spellcheck="true">&lt;!--    aop事务支持--></span>

<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>beans</span><span class="token punctuation">></span></span>
</code></pre>
<h1 id="配置controller层"><a href="#配置controller层" class="headerlink" title="配置controller层"></a>配置controller层</h1><p>在controller包下使用注解@Contreoller实现自动注入到spring层中</p>
<pre class=" language-java"><code class="language-java"><span class="token keyword">package</span> com<span class="token punctuation">.</span>dai<span class="token punctuation">.</span>controller<span class="token punctuation">;</span>

<span class="token keyword">import</span> com<span class="token punctuation">.</span>dai<span class="token punctuation">.</span>pojo<span class="token punctuation">.</span>Books<span class="token punctuation">;</span>
<span class="token keyword">import</span> com<span class="token punctuation">.</span>dai<span class="token punctuation">.</span>service<span class="token punctuation">.</span>BookService<span class="token punctuation">;</span>
<span class="token keyword">import</span> org<span class="token punctuation">.</span>springframework<span class="token punctuation">.</span>beans<span class="token punctuation">.</span>factory<span class="token punctuation">.</span>annotation<span class="token punctuation">.</span>Autowired<span class="token punctuation">;</span>
<span class="token keyword">import</span> org<span class="token punctuation">.</span>springframework<span class="token punctuation">.</span>beans<span class="token punctuation">.</span>factory<span class="token punctuation">.</span>annotation<span class="token punctuation">.</span>Qualifier<span class="token punctuation">;</span>
<span class="token keyword">import</span> org<span class="token punctuation">.</span>springframework<span class="token punctuation">.</span>stereotype<span class="token punctuation">.</span>Controller<span class="token punctuation">;</span>
<span class="token keyword">import</span> org<span class="token punctuation">.</span>springframework<span class="token punctuation">.</span>ui<span class="token punctuation">.</span>Model<span class="token punctuation">;</span>
<span class="token keyword">import</span> org<span class="token punctuation">.</span>springframework<span class="token punctuation">.</span>web<span class="token punctuation">.</span>bind<span class="token punctuation">.</span>annotation<span class="token punctuation">.</span>PathVariable<span class="token punctuation">;</span>
<span class="token keyword">import</span> org<span class="token punctuation">.</span>springframework<span class="token punctuation">.</span>web<span class="token punctuation">.</span>bind<span class="token punctuation">.</span>annotation<span class="token punctuation">.</span>RequestMapping<span class="token punctuation">;</span>

<span class="token keyword">import</span> java<span class="token punctuation">.</span>util<span class="token punctuation">.</span>ArrayList<span class="token punctuation">;</span>
<span class="token keyword">import</span> java<span class="token punctuation">.</span>util<span class="token punctuation">.</span>List<span class="token punctuation">;</span>

<span class="token annotation punctuation">@Controller</span>
<span class="token annotation punctuation">@RequestMapping</span><span class="token punctuation">(</span><span class="token string">"/book"</span><span class="token punctuation">)</span>
<span class="token keyword">public</span> <span class="token keyword">class</span> <span class="token class-name">BookController</span> <span class="token operator">&amp;</span>#<span class="token number">123</span><span class="token punctuation">;</span>

    <span class="token annotation punctuation">@Autowired</span>
    <span class="token annotation punctuation">@Qualifier</span><span class="token punctuation">(</span><span class="token string">"BookServiceImpl"</span><span class="token punctuation">)</span>
    <span class="token keyword">private</span> BookService bookService<span class="token punctuation">;</span>


    <span class="token comment" spellcheck="true">//查询全部书籍</span>
    <span class="token annotation punctuation">@RequestMapping</span><span class="token punctuation">(</span><span class="token string">"/allBook"</span><span class="token punctuation">)</span>
    <span class="token keyword">public</span> String <span class="token function">list</span><span class="token punctuation">(</span>Model model<span class="token punctuation">)</span><span class="token operator">&amp;</span>#<span class="token number">123</span><span class="token punctuation">;</span>

        List<span class="token operator">&lt;</span>Books<span class="token operator">></span> list<span class="token operator">=</span> bookService<span class="token punctuation">.</span><span class="token function">queryAllBooks</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
        model<span class="token punctuation">.</span><span class="token function">addAttribute</span><span class="token punctuation">(</span><span class="token string">"list"</span><span class="token punctuation">,</span>list<span class="token punctuation">)</span><span class="token punctuation">;</span>
        <span class="token keyword">return</span> <span class="token string">"allBook"</span><span class="token punctuation">;</span>
    <span class="token operator">&amp;</span>#<span class="token number">125</span><span class="token punctuation">;</span>

    <span class="token comment" spellcheck="true">//跳转增加页面</span>
    <span class="token annotation punctuation">@RequestMapping</span><span class="token punctuation">(</span><span class="token string">"/toAddBook"</span><span class="token punctuation">)</span>
    <span class="token keyword">public</span> String <span class="token function">toAddPaper</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token operator">&amp;</span>#<span class="token number">123</span><span class="token punctuation">;</span>
        <span class="token keyword">return</span> <span class="token string">"addBook"</span><span class="token punctuation">;</span>
    <span class="token operator">&amp;</span>#<span class="token number">125</span><span class="token punctuation">;</span>

    <span class="token comment" spellcheck="true">//添加书籍的请求</span>
    <span class="token annotation punctuation">@RequestMapping</span><span class="token punctuation">(</span><span class="token string">"/addBook"</span><span class="token punctuation">)</span>
    <span class="token keyword">public</span> String <span class="token function">addBook</span><span class="token punctuation">(</span>Books books<span class="token punctuation">)</span><span class="token operator">&amp;</span>#<span class="token number">123</span><span class="token punctuation">;</span>
        bookService<span class="token punctuation">.</span><span class="token function">addBook</span><span class="token punctuation">(</span>books<span class="token punctuation">)</span><span class="token punctuation">;</span>
        <span class="token keyword">return</span> <span class="token string">"redirect:/book/allBook"</span><span class="token punctuation">;</span>
    <span class="token operator">&amp;</span>#<span class="token number">125</span><span class="token punctuation">;</span>

    <span class="token comment" spellcheck="true">//跳转到修改界面</span>
    <span class="token annotation punctuation">@RequestMapping</span><span class="token punctuation">(</span><span class="token string">"/toUpdate"</span><span class="token punctuation">)</span>
    <span class="token keyword">public</span> String <span class="token function">toUpdatePaper</span><span class="token punctuation">(</span><span class="token keyword">int</span> id<span class="token punctuation">,</span>Model model<span class="token punctuation">)</span><span class="token operator">&amp;</span>#<span class="token number">123</span><span class="token punctuation">;</span>
        Books books <span class="token operator">=</span> bookService<span class="token punctuation">.</span><span class="token function">queryBookById</span><span class="token punctuation">(</span>id<span class="token punctuation">)</span><span class="token punctuation">;</span>
        model<span class="token punctuation">.</span><span class="token function">addAttribute</span><span class="token punctuation">(</span><span class="token string">"QBook"</span><span class="token punctuation">,</span>books<span class="token punctuation">)</span><span class="token punctuation">;</span>
        System<span class="token punctuation">.</span>out<span class="token punctuation">.</span><span class="token function">println</span><span class="token punctuation">(</span>books<span class="token punctuation">)</span><span class="token punctuation">;</span>
        <span class="token keyword">return</span> <span class="token string">"Update"</span><span class="token punctuation">;</span>
    <span class="token operator">&amp;</span>#<span class="token number">125</span><span class="token punctuation">;</span>

    <span class="token comment" spellcheck="true">//修改书籍</span>
    <span class="token annotation punctuation">@RequestMapping</span><span class="token punctuation">(</span><span class="token string">"/update"</span><span class="token punctuation">)</span>
    <span class="token keyword">public</span> String <span class="token function">UpdatePaper</span><span class="token punctuation">(</span>Books books<span class="token punctuation">)</span><span class="token operator">&amp;</span>#<span class="token number">123</span><span class="token punctuation">;</span>
        System<span class="token punctuation">.</span>out<span class="token punctuation">.</span><span class="token function">println</span><span class="token punctuation">(</span><span class="token string">"updateBook------"</span><span class="token operator">+</span>books<span class="token punctuation">)</span><span class="token punctuation">;</span>
        bookService<span class="token punctuation">.</span><span class="token function">updateBook</span><span class="token punctuation">(</span>books<span class="token punctuation">)</span><span class="token punctuation">;</span>
        <span class="token keyword">return</span> <span class="token string">"redirect:/book/allBook"</span><span class="token punctuation">;</span>
    <span class="token operator">&amp;</span>#<span class="token number">125</span><span class="token punctuation">;</span>

    <span class="token comment" spellcheck="true">//删除书籍</span>
    <span class="token annotation punctuation">@RequestMapping</span><span class="token punctuation">(</span><span class="token string">"/delete/&amp;#123;bookId&amp;#125;"</span><span class="token punctuation">)</span>
    <span class="token keyword">public</span> String <span class="token function">deletePaper</span><span class="token punctuation">(</span><span class="token annotation punctuation">@PathVariable</span><span class="token punctuation">(</span><span class="token string">"bookId"</span><span class="token punctuation">)</span> <span class="token keyword">int</span> id<span class="token punctuation">)</span><span class="token operator">&amp;</span>#<span class="token number">123</span><span class="token punctuation">;</span>
        System<span class="token punctuation">.</span>out<span class="token punctuation">.</span><span class="token function">println</span><span class="token punctuation">(</span><span class="token string">"delete--------"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
        bookService<span class="token punctuation">.</span><span class="token function">deleteBook</span><span class="token punctuation">(</span>id<span class="token punctuation">)</span><span class="token punctuation">;</span>

        <span class="token keyword">return</span>  <span class="token string">"redirect:/book/allBook"</span><span class="token punctuation">;</span>
    <span class="token operator">&amp;</span>#<span class="token number">125</span><span class="token punctuation">;</span>

    <span class="token comment" spellcheck="true">//查询书籍</span>
    <span class="token annotation punctuation">@RequestMapping</span><span class="token punctuation">(</span><span class="token string">"/queryBook"</span><span class="token punctuation">)</span>
    <span class="token keyword">public</span> String <span class="token function">queryBook</span><span class="token punctuation">(</span>String queryBookName<span class="token punctuation">,</span>Model model<span class="token punctuation">)</span><span class="token operator">&amp;</span>#<span class="token number">123</span><span class="token punctuation">;</span>
        System<span class="token punctuation">.</span>out<span class="token punctuation">.</span><span class="token function">println</span><span class="token punctuation">(</span><span class="token string">"查询----------------"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
        Books books <span class="token operator">=</span> bookService<span class="token punctuation">.</span><span class="token function">queryBookName</span><span class="token punctuation">(</span>queryBookName<span class="token punctuation">)</span><span class="token punctuation">;</span>
        List<span class="token operator">&lt;</span>Books<span class="token operator">></span> list<span class="token operator">=</span><span class="token keyword">new</span> <span class="token class-name">ArrayList</span><span class="token operator">&lt;</span><span class="token operator">></span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
        list<span class="token punctuation">.</span><span class="token function">add</span><span class="token punctuation">(</span>books<span class="token punctuation">)</span><span class="token punctuation">;</span>
        System<span class="token punctuation">.</span>err<span class="token punctuation">.</span><span class="token function">println</span><span class="token punctuation">(</span>books<span class="token punctuation">)</span><span class="token punctuation">;</span>
        <span class="token keyword">if</span><span class="token punctuation">(</span>books<span class="token operator">==</span>null<span class="token punctuation">)</span><span class="token operator">&amp;</span>#<span class="token number">123</span><span class="token punctuation">;</span>
            list<span class="token operator">=</span> bookService<span class="token punctuation">.</span><span class="token function">queryAllBooks</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
            model<span class="token punctuation">.</span><span class="token function">addAttribute</span><span class="token punctuation">(</span><span class="token string">"error"</span><span class="token punctuation">,</span><span class="token string">"未查到"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
        <span class="token operator">&amp;</span>#<span class="token number">125</span><span class="token punctuation">;</span>
            model<span class="token punctuation">.</span><span class="token function">addAttribute</span><span class="token punctuation">(</span><span class="token string">"list"</span><span class="token punctuation">,</span>list<span class="token punctuation">)</span><span class="token punctuation">;</span>

        <span class="token keyword">return</span> <span class="token string">"allBook"</span><span class="token punctuation">;</span>
    <span class="token operator">&amp;</span>#<span class="token number">125</span><span class="token punctuation">;</span> 
<span class="token operator">&amp;</span>#<span class="token number">125</span><span class="token punctuation">;</span>
</code></pre>
<p>配置spring-mvc中</p>
<p>1.注解驱动</p>
<p>2.扫描包</p>
<p>3.视图解析器</p>
<pre class=" language-xml"><code class="language-xml"><span class="token prolog">&lt;?xml version="1.0" encoding="UTF-8"?></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>beans</span> <span class="token attr-name">xmlns</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>http://www.springframework.org/schema/beans<span class="token punctuation">"</span></span>
       <span class="token attr-name"><span class="token namespace">xmlns:</span>xsi</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>http://www.w3.org/2001/XMLSchema-instance<span class="token punctuation">"</span></span> <span class="token attr-name"><span class="token namespace">xmlns:</span>mvc</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>http://www.springframework.org/schema/mvc<span class="token punctuation">"</span></span>
       <span class="token attr-name"><span class="token namespace">xmlns:</span>context</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>http://www.springframework.org/schema/context<span class="token punctuation">"</span></span>
       <span class="token attr-name"><span class="token namespace">xsi:</span>schemaLocation</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/mvc https://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
<span class="token comment" spellcheck="true">&lt;!--    扫描包--></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span><span class="token namespace">context:</span>component-scan</span> <span class="token attr-name">base-package</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>com.dai.controller<span class="token punctuation">"</span></span><span class="token punctuation">/></span></span>
<span class="token comment" spellcheck="true">&lt;!--    注解驱动--></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span><span class="token namespace">mvc:</span>annotation-driven</span><span class="token punctuation">/></span></span>
<span class="token comment" spellcheck="true">&lt;!--    静态资源过滤--></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span><span class="token namespace">mvc:</span>default-servlet-handler</span><span class="token punctuation">/></span></span>
<span class="token comment" spellcheck="true">&lt;!--    视图解析器--></span>

    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>bean</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>org.springframework.web.servlet.view.InternalResourceViewResolver<span class="token punctuation">"</span></span> <span class="token attr-name">id</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>internalResourceViewResolver<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>property</span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>prefix<span class="token punctuation">"</span></span> <span class="token attr-name">value</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>/WEB-INF/jsp/<span class="token punctuation">"</span></span><span class="token punctuation">/></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>property</span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>suffix<span class="token punctuation">"</span></span> <span class="token attr-name">value</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>.jsp<span class="token punctuation">"</span></span><span class="token punctuation">/></span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>bean</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>beans</span><span class="token punctuation">></span></span>
</code></pre>
<h1 id="配置web层面"><a href="#配置web层面" class="headerlink" title="配置web层面"></a>配置web层面</h1><p>配置web.xml:</p>
<p>1.配置DispatcherServlet（spring中的调度功能）</p>
<p>2.配置乱码过滤</p>
<p>3.配置session延时</p>
<pre class=" language-xml"><code class="language-xml"><span class="token prolog">&lt;?xml version="1.0" encoding="UTF-8"?></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>web-app</span> <span class="token attr-name">xmlns</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>http://xmlns.jcp.org/xml/ns/javaee<span class="token punctuation">"</span></span>
         <span class="token attr-name"><span class="token namespace">xmlns:</span>xsi</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>http://www.w3.org/2001/XMLSchema-instance<span class="token punctuation">"</span></span>
         <span class="token attr-name"><span class="token namespace">xsi:</span>schemaLocation</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd<span class="token punctuation">"</span></span>
         <span class="token attr-name">version</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>4.0<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>

    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>servlet</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>servlet-name</span><span class="token punctuation">></span></span>springmvc<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>servlet-name</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>servlet-class</span><span class="token punctuation">></span></span>org.springframework.web.servlet.DispatcherServlet<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>servlet-class</span><span class="token punctuation">></span></span>

        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>init-param</span><span class="token punctuation">></span></span>
            <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>param-name</span><span class="token punctuation">></span></span>contextConfigLocation<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>param-name</span><span class="token punctuation">></span></span>
            <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>param-value</span><span class="token punctuation">></span></span>classpath:applicationContext.xml<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>param-value</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>init-param</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>load-on-startup</span><span class="token punctuation">></span></span>1<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>load-on-startup</span><span class="token punctuation">></span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>servlet</span><span class="token punctuation">></span></span>
    
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>servlet-mapping</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>servlet-name</span><span class="token punctuation">></span></span>springmvc<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>servlet-name</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>url-pattern</span><span class="token punctuation">></span></span>/<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>url-pattern</span><span class="token punctuation">></span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>servlet-mapping</span><span class="token punctuation">></span></span>

<span class="token comment" spellcheck="true">&lt;!--    乱码过滤--></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>filter</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>filter-name</span><span class="token punctuation">></span></span>encoding<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>filter-name</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>filter-class</span><span class="token punctuation">></span></span>org.springframework.web.filter.CharacterEncodingFilter<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>filter-class</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>init-param</span><span class="token punctuation">></span></span>
            <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>param-name</span><span class="token punctuation">></span></span>encoding<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>param-name</span><span class="token punctuation">></span></span>
            <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>param-value</span><span class="token punctuation">></span></span>utf-8<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>param-value</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>init-param</span><span class="token punctuation">></span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>filter</span><span class="token punctuation">></span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>filter-mapping</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>filter-name</span><span class="token punctuation">></span></span>encoding<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>filter-name</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>url-pattern</span><span class="token punctuation">></span></span>/*<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>url-pattern</span><span class="token punctuation">></span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>filter-mapping</span><span class="token punctuation">></span></span>

<span class="token comment" spellcheck="true">&lt;!--    Session--></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>session-config</span><span class="token punctuation">></span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>session-timeout</span><span class="token punctuation">></span></span>15<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>session-timeout</span><span class="token punctuation">></span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>session-config</span><span class="token punctuation">></span></span>

<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>web-app</span><span class="token punctuation">></span></span>
</code></pre>
<p>创建在WEB-INF下面创建jsp包，包类是controller类中跳转的目标</p>
<p>前端三个jsp文件</p>
<p>addBook.jsp</p>
<pre class=" language-jsp"><code class="language-jsp"><%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>

<html>
<head>
    <title>新增书籍</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <!-- 引入 Bootstrap -->
    <link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<div class="container">
    <div class="row clearfix">
        <div class="col-md-12 column">
            <div class="page-header">
                <h1>
                    <small>新增书籍</small>
                </h1>
            </div>
        </div>
    </div>
    <form action="$&#123;pageContext.request.contextPath&#125;/book/addBook" method="post">
        书籍名称：<input type="text" name="bookName"><br><br><br>
        书籍数量：<input type="text" name="bookCounts"><br><br><br>
        书籍详情：<input type="text" name="detail"><br><br><br>
        <input type="submit" value="添加">
    </form>
</div>
</code></pre>
<p>allBook.jsp</p>
<pre class=" language-jsp"><code class="language-jsp"><%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>书籍列表</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <!-- 引入 Bootstrap -->
    <link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>

<div class="container">
    <div class="row clearfix">
        <div class="col-md-12 column">
            <div class="page-header">
                <h1>
                    <small>书籍列表 —— 显示所有书籍</small>
                </h1>
            </div>
        </div>
    </div>
    <div class="row">
        <div class="col-md-4 column">
            <a class="btn btn-primary" href="$&#123;pageContext.request.contextPath&#125;/book/toAddBook">新增</a>
        </div>
        <div class="col-md-d column"></div>
        <div class="col-md-4 column">
            <form action="$&#123;pageContext.request.contextPath&#125;/book/queryBook" method="post" style="float: right" class="form-inline">
                <input type="text" name="queryBookName" class="form-control" placeholder="亲输入要查询的书籍名称">
                <input type="submit" value="查询" class="btn btn-primary">
            </form>
        </div>
    </div>
    <div class="row clearfix">
        <div class="col-md-12 column">
            <table class="table table-hover table-striped">
                <thead>
                <tr>
                    <th>书籍编号</th>
                    <th>书籍名字</th>
                    <th>书籍数量</th>
                    <th>书籍详情</th>
                    <th>操作</th>
                </tr>
                </thead>
                <tbody>
                <c:forEach var="book" items="$&#123;requestScope.get('list')&#125;">
                    <tr>
                        <td>$&#123;book.bookID&#125;</td>
                        <td>$&#123;book.bookName&#125;</td>
                        <td>$&#123;book.bookCounts&#125;</td>
                        <td>$&#123;book.detail&#125;</td>
                        <td>
                            <span style="color: red;font-weight: bold">$&#123;error&#125;</span>
                            <a href="$&#123;pageContext.request.contextPath&#125;/book/toUpdate?id=$&#123;book.bookID&#125;">修改</a>
                            &nbsp; | &nbsp;
                            <a href="$&#123;pageContext.request.contextPath&#125;/book/delete/$&#123;book.bookID&#125;">删除</a>
                        </td>
                    </tr>
                </c:forEach>
                </tbody>
            </table>
        </div>
    </div>
</div>
</code></pre>
<p>Update.jsp</p>
<pre class=" language-jsp"><code class="language-jsp"><%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>

<html>
<head>
    <title>修改书籍</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <!-- 引入 Bootstrap -->
    <link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<div class="container">
    <div class="row clearfix">
        <div class="col-md-12 column">
            <div class="page-header">
                <h1>
                    <small>修改书籍</small>
                </h1>
            </div>
        </div>
    </div>
    <form action="$&#123;pageContext.request.contextPath&#125;/book/update" method="post">
        <input type="hidden" name="bookID" value="$&#123;QBook.bookID&#125;">
        书籍名称：<input type="text" name="bookName" value="$&#123;QBook.bookName&#125;"><br><br><br>
        书籍数量：<input type="text" name="bookCounts" value="$&#123;QBook.bookCounts&#125;"><br><br><br>
        书籍详情：<input type="text" name="detail" value="$&#123;QBook.detail&#125;"><br><br><br>
        <input type="submit" value="修改">
    </form>
</div>
</code></pre>
<h1 id="总结"><a href="#总结" class="headerlink" title="总结"></a>总结</h1><p>1.先配置maven包依赖，数据库文件，和mybatis文件和数据相连。</p>
<p>2.根据具体功能实现创建包结构,配置applicationContext.xml</p>
<p>3.根据数据文件创建一一对应的实体类</p>
<p>4.先在mapper层下创建相应功能的接口，然后利用xml文件进行实现。</p>
<p>5.然后在mybatis-config.xml文件下配相应的接口，在注入到spring-dao层中</p>
<p>6.在service中创建功能的接口和实现类，实现类利用mapper层实现功能。</p>
<p>7.创建spring-service.xml文件来在将实现类进行注入，并配置事务（防止提交不成功）。</p>
<p>8.配置controller包中类，使用注解@Controller来完成该类自动注入，这层用于前端页面的跳转和视图解析。</p>
<p>9.配置spring-mvc层，在配置文件中先配置注解驱动，在配置静态资源过滤，最后配置视图解析器。</p>
<p>10.将mapper层，springmvc，service层的文件全部注入到applicationContext文件中，实现统一控制。</p>
<p>10.先添加web框架，在WEB-INF下创建相应的包结构，配置web.xml（配置DispatcherServlet实现视图调度，绑定applicationtionContext.xml文件，配置乱码过滤）</p>
<p>11.完成前端页面jsp的编写。</p>

                
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